Respiratory infection in Marine recruits. Influence of personal characteristics.
D000124:Achievement; D000367:Age Factors; D003710:Demography; D004522:Educational Status; D005006:Ethnicity; D005191:Family Characteristics; D006306:Health Surveys; D006801:Humans; D007360:Intelligence; D008297:Male; D008889:Military Personnel; D012111:Residence Characteristics; D012141:Respiratory Tract Infections / Q000453:epidemiology*; D012621:Seasons; D014481:United States